Cracking Code Breakers: Engineering Colossus, the World’s First Programmable Computer (KS2)

Discover the lesser known story of the General Post Office’s (GPO) role in wartime codebreaking.
Cracking Code Breakers. KS2/3 workshop

Cracking Code Breakers. KS2/3 workshop

KS2 Computing, History, Science, Technology, Engineering, Maths
Suitable for Years 5 – 6 (differentiated for year group)

In this workshop

Help Chief Post Office engineer Tommy Flowers to build Colossus, the machine that cracked top secret messages from Hitler! Step inside the Post Office Engineering Research Station at Dollis Hill, brought to life through archival film and objects. Learn about codes and ciphers, take on engineering tasks, and reconstruct Colossus to reveal its vital role in the D-Day landings.

Availability: Tuesday, Wednesday and Thursday

Duration: 1-hour workshop

Cost: £100 per workshop plus VAT

Group size: 30 pupils max, up to 3 classes per day

Adult : pupil ratio (KS2) 1:6 (plus SEND support staff)

Book your visit today

Make a day of your school visit

Book to ride Mail Rail.


Cracking Code Breakers is generously supported by: